Note that the C<d>, C<l>, C<p>, and C<u> modifiers are special in that
they can only be enabled, not disabled, and the C<d>, C<l>, and C<u>
-modifiers are mutually exclusive; a maximum of one may appear in the
-construct. Specifying one de-specifies the others. Thus, for example,
-C<(?-p)> and C<(?-d:...)> are meaningless and will warn when compiled
-under C<use warnings>.
+modifiers are mutually exclusive: specifying one de-specifies the
+others, and a maximum of one may appear in the construct. Thus, for
+example, C<(?-p)>, C<(?-d:...)>, and C<(?-dl:...)> will warn when
+compiled under C<use warnings>.
Note also that the C<p> modifier is special in that its presence
anywhere in a pattern has a global effect.